CN106470721A - Safety needle assembly and method - Google Patents
Safety needle assembly and method Download PDFInfo
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- CN106470721A CN106470721A CN201580017760.6A CN201580017760A CN106470721A CN 106470721 A CN106470721 A CN 106470721A CN 201580017760 A CN201580017760 A CN 201580017760A CN 106470721 A CN106470721 A CN 106470721A
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- Prior art keywords
- safety guard
- safety
- pin
- socket
- housing
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/326—Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3271—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1586—Holding accessories for holding infusion needles on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
- A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/326—Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
- A61M2005/3267—Biased sleeves where the needle is uncovered by insertion of the needle into a patient's body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2207/00—Methods of manufacture, assembly or production
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Safety needle assembly includes housing, and housing includes proximal end and distal end portion, and limits inner space.Socket is rotatably received in the inner space of housing.Needle cannula receives in the proximal end of housing.Pin includes sharp distal tip, pin from needle cannula towards distal extension, by socket, and by the distal end portion of housing.Safety guard limits inner chamber, and safety guard receives in the inner space of housing.Safety guard distal end portion by housing towards distal extension from housing.Pin extends through the inner chamber of safety guard, and sharp distal tip exposes from safety guard.Biasing member receives in socket, and extends between needle cannula and safety guard.Safety needle assembly includes the first construction and the second construction, and in the first construction, safety guard and socket limit first and rotate against orientation, and in the second configuration, safety guard and socket limit second and rotate against orientation.
Description
Cross-Reference to Related Applications
This application claims the preference of the U.S. Provisional Application No. 61/937.307 submitting to on 2 7th, 2014, this application passes through
Quote and be clearly incorporated herein.
Technical field
The embodiments herein relates to, through skin, fluid is injected body, and/or the group extracting fluid from body out
Part and method.
Background technology
It is usually used needle assembly, via skin, fluid is injected body, and/or extract fluid from body out.One
Individual or multiple assemblies are connected on assembly and separated, and during completing injection/extraction process, needle assembly typically remains set at
In vascular system.After extracting assembly out from vascular system, the sharp distal tip of pin exposes.It is unfavorable for so that tip is exposed
, because there is the risk that medical personnel may unexpected be stabbed.This phenomenon is referred to as acupuncture, and can propagate the disease that blood carries
Disease.
Content of the invention
The various embodiments of safety needle assembly and method have some features, and either of which does not individually undertake theirs
Desirable attribute.In the case of the scope not limiting the current embodiment being shown by claims, now will
Their more prominent features are briefly discussed.After considering this discussion, and particularly read entitled " concrete
After the chapters and sections of embodiment ", it will be appreciated by those skilled in the art that the feature of current embodiment how to provide described herein
Advantage.
One embodiment of this paper includes safety needle assembly.Safety needle assembly includes housing, and housing includes proximal end and remote
Side, and limit inner space.Safety needle assembly further includes socket, and the inside that socket is rotatably received in housing is empty
Interior.Safety needle assembly further includes to receive the needle cannula in the proximal end of housing.Safety needle assembly further includes pin,
Pin from needle cannula towards distal extension, by socket, and by the distal end portion of housing.Pin includes sharp distal tip.Safty pin
Assembly further includes safety guard, and it limits inner chamber and receives in the inner space of housing.Safety guard prolongs towards distally from housing
Extend through the distal end portion of housing.Pin extends through the inner chamber of safety guard, and sharp distal tip exposes from safety guard.Safety needle assembly
Further include biasing member, it receives in socket, and extend between needle cannula and safety guard.Safety needle assembly includes
First construction and the second construction, in the first construction, safety guard and socket limit first and rotate against orientation, in the second construction
In, safety guard and socket limit second and rotate against orientation.
Another embodiment of this paper includes a kind of method of use safety needle assembly, and safety needle assembly includes supporting socket
With the housing of needle cannula, socket is rotatably received in housing, and pin and includes sharp distal from needle cannula towards distal extension
Tip, safety guard is arranged on above pin.Method includes being in the sharp distal tip of wherein pin from safety guard in safety needle assembly
Distal end portion expose and safety guard engage socket with stop safety guard along pin towards the first of distal translation construction in the case of, make
Safety guard proximally translates along pin.Method further include at safety guard along pin proximally translate when, make socket with respect to
Safety guard rotates, so that safety guard is disengaged with socket, to allow safety guard along pin towards distal translation.Method further includes
Make safety guard along pin towards distal translation, until safety guard covers the sharp distal tip of pin.
Another aspect of the disclosure is a kind of safety needle assembly, including：Housing, including proximal end and distal end portion, housing
Limit inner space；It is rotatably received in the socket in the inner space of housing；Receive the needle guard in the proximal end of housing
Pipe；From needle cannula towards distal extension, by socket, and by the distal end portion of housing, pin includes sharp distal tip to pin；Safety
Cover, it limits inner chamber and receives in the inner space of housing, and safety guard passes through distally end housing, pin from housing towards distal extension
Extend through the inner chamber of safety guard, sharp distal tip exposes from safety guard；And biasing member, it receives in socket, and
And extend between needle cannula and safety guard；Wherein, safety needle assembly includes the first construction, first construction in, safety guard and
Socket limits first and rotates against orientation；And wherein, safety needle assembly includes the second construction, in the second configuration, safety guard
Limit second with socket and rotate against orientation.
Safety needle assembly, wherein, when safety needle assembly adopts the first construction, the engageable socket of safety guard, to stop peace
Entirely cover with respect to pin towards distal translation.
Safety needle assembly, wherein, safety guard may include lock pin, and when safety needle assembly adopts the first construction, lock pin engages
Recess on socket.
Safety needle assembly, wherein, recess may include the skewed surface of the nearside in lock pin.
Safety needle assembly, wherein, when safety guard proximally moves with respect to socket, lock pin can lean against on skewed surface, from
And make socket rotate against directional-rotation with respect to safety guard towards second.
Safety needle assembly, wherein, lock pin can extend radially outward from safety guard.
Safety needle assembly, wherein, socket may include vertical passage, and when safety guard and socket rotate against using second
During orientation, lock pin can slide in passage.
Safety needle assembly, wherein, when safety needle assembly adopts the second construction, socket is not necessarily limited safety guard with respect to pin
Towards distal translation.
Safety needle assembly, wherein, when safety needle assembly adopts the first construction, and when safety needle assembly adopts the second structure
When making, biasing member can be towards distal direction bias safe cover.
Safety needle assembly, wherein, when the power towards distally orientation that biasing member applies on safety guard overcomes in safety guard
Upper applying proximally orient power when, safety guard can be moved distally with respect to pin, to cover the sharp distal tip of pin.
Safety needle assembly, wherein, when safety guard cover pin sharp distal tip when, housing can stop safety guard with respect to
Pin proximally moves the distance of the sharp distal tip enough to exposed needle.
Safety needle assembly, wherein, housing may include block (catch), and block is configured in safety guard with respect to housing edge
Deflection when proximal-distal direction is mobile, to allow safety guard to pass through, and block may be configured to stop safety guard with respect to housing
Move along distal-proximal direction.
Safety needle assembly, wherein, block may include leaf spring.
Safety needle assembly, wherein, the engageable housing of safety guard, to stop safety guard from rotating with respect to housing.
Safety needle assembly, wherein, safety guard may include at least one rail, and rail prolongs along the outer surface of safety guard along longitudinal
Stretch, and be slidably received at least one of housing breach.
Safety needle assembly can further include wing assembly, and wing assembly includes the wing, and the wing is laterally extending from safety needle assembly, and
And be configured with being beneficial to safety needle assembly is fixed to patient.
Safety needle assembly, wherein, biasing member can be spring.
Another aspect of the present disclosure includes a kind of method manufacturing safety needle assembly.The method may include：Form support tube
Cylinder and the housing of needle cannula, socket is rotatably received in housing；Make pin from needle cannula towards distal extension, described pin includes point
Sharp distal tip；Safety guard is positioned above pin so that in the first construction, sharp distal tip is from the distal end portion of safety guard
Expose；Wherein, safety guard engages socket, to stop safety guard along pin towards distal translation；Wherein, when safety guard is along pin towards near
During the translation of side, socket can rotate with respect to safety guard, so that safety guard is disengaged with socket, to allow safety guard along pin towards distally
Translation；And wherein, safety guard can be along pin towards distal translation, to cover the sharp distal tip of pin.
Method can further include biasing member, with the power that safety guard application is oriented towards distally.
Method, wherein, biasing member can receive in socket, and extends between needle cannula and safety guard.
Method, wherein, biasing member can be spring.
Method, wherein, safety guard may include lock pin, and when safety needle assembly is in the first construction, lock pin engages on socket
Block.
Method, wherein, block may include the skewed surface of the nearside in lock pin.
Method, wherein, when safety guard proximally translates along pin, lock pin can lean against on skewed surface, so that socket phase
For safety guard rotation.
Another aspect of the present disclosure is the method using safety needle assembly.Using method may include：Supporting socket and needle guard
The housing of pipe, socket is rotatably received in housing；Towards distal extension and include the pin of sharp distal tip, set from needle cannula
Put the safety guard on pin, the method includes：It is in the sharp distal tip of wherein pin in safety needle assembly from safety guard
Distal end portion expose and safety guard engage socket with stop safety guard along pin towards the first of distal translation construction in the case of, make peace
Full cover proximally translates along pin；When safety guard proximally translates along pin, socket is made to rotate with respect to safety guard, so that
Safety guard is disengaged with socket, to allow safety guard along pin towards distal translation；And safety guard is along pin towards distal translation, until
Safety guard covers the sharp distal tip of pin.
Using method, wherein, makes safety guard may include to safety guard application towards distally orientation along pin towards distal translation
The biasing member of power.
Using method, wherein, biasing member can receive in socket, and extends between needle cannula and safety guard.
Method uses, and wherein, biasing member can be spring.
Using method, wherein, safety guard may include lock pin, when safety needle assembly is in the first construction, lock pin conjugation tube
Block on cylinder.
Using method, wherein, block may include the skewed surface of the nearside in lock pin.
Using method, wherein, when safety guard proximally translates along pin, lock pin can lean against on skewed surface, so that pipe
Cylinder is with respect to safety guard rotation.
Using method, wherein, when safety guard covers the sharp distal tip of pin, housing can stop safety guard with respect to pin
Proximally move the distance of the sharp distal tip enough to exposed needle.
Using method, wherein, housing may include block, and block is configured in safety guard with respect to housing in proximal-distal
Side's deflection when moving up, to allow safety guard to pass through, and block is configured to stop safety guard with respect to housing in distally-near
Side moves up.
Method, wherein, block may include leaf spring.
Brief description
Will be discussed in detail now the various embodiments of safety needle assembly and method, highlight favorable characteristics.These are real
Apply example and depict the novel and non-obvious safety needle assembly of display and method in accompanying drawing, accompanying drawing is merely to illustrate that mesh
's.These figures include figure below, and wherein identical label indicates same parts：
Fig. 1 is the side perspective view of an embodiment of safety needle assembly, and it illustrates that assembly is in and enables front construction；
Figure 1A is the detailed view of the part of the Fig. 1 being indicated by the frame being designated as 1A-1A；
Fig. 2 is the side perspective view of the safety needle assembly of Fig. 1, its illustrate assembly be in enable after construction；
Fig. 3 is the exploded side perspective view of the safety needle assembly of Fig. 1；
Fig. 4 is the cross-sectional side perspective view of the safety needle assembly of the Fig. 1 being obtained by the line of cut being designated as 4-4 in Fig. 1；
Fig. 5 is the side perspective view of the socket of the safety needle assembly of Fig. 1；
Fig. 6 is the side perspective view of the safety guard of the safety needle assembly of Fig. 1；
Fig. 7 is the side perspective view of the various components of the safety needle assembly of Fig. 1；
Fig. 8 is the cross-sectional side view of the safety needle assembly of the Fig. 1 being obtained by the line of cut being designated as 4-4 in Fig. 1；
Fig. 9 is the side view of the various components of the safety needle assembly of Fig. 1；
Figure 10 is the various element cross-section sides of the safety needle assembly by being designated as Fig. 1 that the line of cut of 4-4 obtains in Fig. 1
Perspective view；
Figure 11 is the various element cross-section sides of the safety needle assembly by being designated as Fig. 1 that the line of cut of 4-4 obtains in Fig. 1
Perspective view；And
Figure 12 is the cross-sectional side perspective view of the safety needle assembly by being designated as Fig. 2 that the line of cut of 12-12 obtains in Fig. 2.
Specific embodiment
Described in detail below describe current embodiment with reference to the accompanying drawings.In in figure, the current enforcement of identical labelled notation
The element of example.Below in relation to the discussion of corresponding figure feature, these reference number is repeated.
The embodiment of safety needle assembly and method to be described with reference to the accompanying drawings.These figures and the written of them are retouched
State and show that some components of equipment form, and some other components then independently form.Those of ordinary skill in the art will
Understand, the shown and described herein component forming can independently form in an alternative embodiment.The common skill in this area
Art personnel will be further understood that, the described and shown herein component independently forming can form in an alternative embodiment.
In addition, as used herein, the single global facility of term whole description.
Current embodiment includes method and manufacture or the method making safety needle assembly using safety needle assembly.Can be with
Treatment people and/or animal bodies combine some executing in these embodiments.Can execute independent of people and/or animal bodies
Other embodiments in these embodiments, such as in order to test or demonstrate.Therefore, the mesh relevant with using safety needle assembly method
The method that front embodiment is not intended to be limited to treat people and/or animal bodies.
Fig. 1-12 illustrates an embodiment of safety needle assembly 20.Assembly 20 be configured for draw blood and/or transfuse blood or
Defeated other liquid.With reference to Fig. 1,2 and 3, in certain embodiments, assembly 20 include housing 22, socket 24 (Fig. 3), needle cannula 26,
Pin 28, safety guard 30 and biasing member 32 (Fig. 3).With reference to Fig. 1, pin 28 includes sharp distal tip 34.Structure before the enabling of Fig. 1
Make or be ready in the construction using, sharp distal tip 34 exposes from the distal end portion 36 of safety guard 30.Assembly 20 alternatively wraps
Include removable cap (not shown), it extends, to cover sharp distal tip in enabling front construction on pin 28 and safety guard 30
34, and thus reducing the probability of acupuncture, and/or be used for packing.After the enabling of Fig. 2 construction (also referred to as protection or
Protective position) in, safety guard 30 exceedes sharp distal tip 34 towards distal extension, covers sharp tip 34 with protective, and
And reduce the probability of accidental needle sticks.
With reference to Fig. 4, housing 22 includes proximal end 38 and distal end portion 40, and limits inner space 42.In the enforcement illustrating
In example, housing 22 is general cylindrical.But, the construction illustrating is only an example and is not restricted.Housing 22 wraps
Include in the proximal open 44 at proximal end 38 and the distal openings at distal end portion 40 46.The wall thickness of housing 22 is substantially uniform
, except, at distal end portion 40, there, housing wall is thicker, thus producing inner loop proximally at the point that wall thickness increases
Shape shoulder 48.In an alternative embodiment, the wall thickness of housing 22 need not be thicker at distal end portion 40.For example, can be at distal end portion 40
Or it is provided about rib (not shown) or other structures, to provide and the same or analogous function of shoulder 48.Distal openings 46 extend
The region being increased by wall thickness, distal openings 46 thus than proximal open 44, there is less diameter.In other examples, housing
There is uniform thickness, and shoulder is by being inserted separately into or co-molded component is formed.
With reference to Fig. 3 and 4, housing 22 includes the block 50 near distal end portion 40.In particular with reference to Fig. 3, block 50 includes
A part by the wall surface of the housing 22 being limited by the U-shaped otch 52 of side wall.In particular with reference to Fig. 4, block 50 is cantilever
Leaf spring, cantilever leaf spring is from its fluidic junction 54 with side wall towards distal extension.Fluidic junction 54 can as illustrated be located at nearside or
Person is distally located.Near its distal end portion 56, the thickness of block 50 increases, thus producing skewed surface 58.As described herein below that
Sample, when safety guard 30 slides along pin 28 towards distally, skewed surface 58 leans against on safety guard 30 so that block 50 radially to
Extrinsic deflection, until safety guard 30 is till block 50.Spring in safety guard 30 after block 50, in deflection block 50
Return force makes block 50 return to its resting position, and in resting position, block 50 stops safety guard 30 from proximally returning along pin 28
Return.Being discussed in more detail below safety guard 30 makes block 50 deflect, and block subsequently stops the process that safety guard returns.
With further reference to Fig. 4, socket 24 is rotatably received in the inner space 42 of housing 22.Socket 24 and housing 22
Relative size be preferably so that socket 24 can rotate freely in the inner space 42 of housing 22, socket 24 and housing 22 it
Between no big rub.Fig. 5 illustrates in greater detail socket 24.In the illustrated embodiment, socket 24 is general cylindrical, and includes
Substantially homogeneous wall thickness.But, the construction illustrating be only an example and nonrestrictive.Passage 60 passes through the side of socket 24
Wall, extends to its distal end portion 64 from its proximal end 62.The edge of passage 60 includes the recess 66 near distal end portion 64.Recess 66
Engage safety guard 30, as described in detail below.In the distally of recess 66, the edge of passage 60 further includes at distally
Hold the otch 68 at 64.Otch 68 provides gap so that socket 24 does not interfere the block 50 on housing 22.Recess 66 and otch 68
It is not limited to their the corresponding shape illustrating.In an alternative embodiment, any one of recess 66 and otch 68 or they two
Person can have different shapes.
With reference to Fig. 4, needle cannula 26 receives in the proximal open 44 of housing 22.In the illustrated embodiment, needle cannula 26
It is arranged to stepped cylinder body in shape.But, the construction illustrating be only an example and nonrestrictive.Needle cannula 26
Core 70 include overall diameter, overall diameter is slightly lower than the interior diameter of the proximal open 44 of housing 22 so that core
70 snugly receive and are maintained in proximal open 44.Needle cannula 26 can be maintained at proximal open 44 by any suitable means
Interior, frictional fit, binding agent, welding etc..Proximal flange 72 at the proximal end of needle cannula 26 from core 70 along footpath
To stretching out, and the annular proximal face 74 of the housing 22 that reclines.The distal part 76 of needle cannula 26 is included than core 70
Less overall diameter, thus produce the inner annular shoulder towards distally at the fluidic junction of distal part 76 and core 70
78.
With further reference to Fig. 4, needle cannula 26 further includes at the first interior diameter 80 in the region of core 70, its
Progressively it is reduced to the second less interior diameter 82 at the fluidic junction of core 70 and distal part 76, thus in step
Inner annular shoulder 84 proximally is produced at position.Pipe 86 receives in the first interior diameter region 80 of needle cannula 26, and
Proximally extend needle cannula 26.Pin 28 receives in the less interior diameter 82 of the distal part 76 of needle cannula 26, and from
Needle cannula 26, towards distal extension, by socket 24, and passes through the distal openings 46 of housing 22.Pin 28 can be by any suitable
Means are maintained in needle cannula 26, frictional fit, binding agent, welding etc..As described above, pin 28 includes sharply
Distal tip 34.Pin 28 is alternatively referred to as intubation, and it limits inner chamber 88 further, and inner chamber 88 extends completely through pin 28.Pin 28
Inner chamber 88 is in fluid communication with the pipe 86 proximally extending needle cannula 26.Thus pipe 86 and pin 28 are on being connected to pipe 86
Flow path is produced, the sharp distal tip 34 of pin 28 is inserted into the patient between fluid source and patient.
With further reference to Fig. 4, safety guard 30 receives in the inner space 42 of housing 22, and prolongs towards distally from housing 22
Extend through distal openings 46.With reference to Fig. 6, it show in more detail safety guard 30, and the shape of safety guard 30 essentially has outside uniformly
The cylinder of diameter, except the tapered nose at distal end portion 36 and the flange 90 extending radially outward at proximal end 92.Ginseng
According to Fig. 4, the relative size of the distal openings 46 of safety guard 30 and housing 22 is preferably so that the uniform overall diameter portion of safety guard 30
Dividing can in distal openings 46 slidably, no big friction between safety guard 30 and distal openings 46.But, proximal flange
90 have bigger diameter than distal openings 46 so that safety guard 30 can not be discharged from housing 22 by distal openings 46.Safety
Cover 30 restriction inner chamber 94, inner chamber 94 is slideably received within pin 28.The relative size of safety guard inner chamber 94 and pin 28 is preferably so that
Pin 28 can in safety guard inner chamber 94 slidably, no big friction between pin 28 and inner chamber 94.
With reference to Figure 1A, it illustrates the detailed view of the distal end portion 40 of housing 22, and wherein safety guard 30 passes through distal openings 46
And out, safety guard 30 includes at least one rail 96, rail extends longitudinally along the outer surface of safety guard 30.More than one can be provided
Individual rail 96, the such as second rail 96, it is arranged to diametrically opposite with the rail 96 seen in Fig. 1.Distal openings 46 in housing 22
Including the keyway receiving rail 96 or notch 98.Keyway 98 is preferably essentially and rail 96 identical shape, and its size is slightly
More greatly so that keyway 98 and rail 96 noninterference security cover 30 pass through the translational motion of distal openings 46, but rail 96 is in keyway 98
Joint can stop safety guard 30 and housing 22 from relatively rotating.
With reference to Fig. 6, safety guard 30 further includes lock pin 100, and proximally flange 90 extends radially outward lock pin 100.
In the illustrated embodiment, the cross section of lock pin 100 is circle.But, the construction illustrating be only an example and unrestricted
Property.With reference to Fig. 7, it illustrates safety guard 30 and socket 24, in order to clear without illustrating housing 22, when safety needle assembly 20 is adopted
With Fig. 1 when enabling front construction, lock pin 100 engages the recess 66 on socket 24.With reference to Fig. 5, the distal face 102 of recess 66 is to lock
Pin 100 is provided against surface, stops safety guard 30 from being moved distally along pin 28 against surface, so that the sharp distal of pin 28
Tip 34 (Fig. 7) keeps exposing for using.The proximal side 104 (Fig. 5) of recess 66 includes skewed surface, in safety guard 30 along pin 28
When proximally moving, lock pin 100 leans against on skewed surface, so that socket 24 and safety guard 30 relatively rotate, such as further below
As description.
With reference to Fig. 4, biasing member 32 receives in socket 24.In the illustrated embodiment, biasing member 32 includes spring,
More particularly, wind spring.But, the embodiment illustrating be only an example and nonrestrictive.Structure before Fig. 1 and 4 enable
In making, biasing member 32 is compressed, and the proximal end 106 of biasing member 32 leans against the annular shoulder 78 towards distally of needle cannula 26
On, and the distal end portion 108 of biasing member 32 leans against in the proximal side 110 of safety guard 30.When safety guard 30 is along pin 28 towards near
During the translation of side, as is described below, biasing member 32 compresses further, thus improve the spring leaning against on safety guard 30 returning
The amplitude of Hui Li, and safety guard 30 is biased towards construction after the enabling of Fig. 2, as further described below.
With reference to Fig. 1, safety needle assembly 20 further includes wing assembly 112.Wing assembly 112 includes general cylindrical body
114, it limits inner passage 116, and housing 22 extends through inner passage 116 so that wing assembly 112 is located at the distally of housing 22
Near end 40.In the illustrated embodiment, body is general cylindrical.But, the construction illustrating be only an example rather than
Restricted.For example, housing can be angular, ellipse circular, avette or hollow polyhedral, to receive housing.The inner passage of body
116 and the relative size of housing 22 be preferably so that body 114 is snugly received around housing 22, to limit wing assembly
112 and the relative movement of housing 22.Wing assembly 112 can be fixed on housing 22 by any suitable means, and such as friction is joined
Conjunction, binding agent, welding etc..
With further reference to Fig. 1, wing assembly 112 includes first and second wings 118, and they are from body 114 in contrary direction
Upper laterally extending.The wing 118 be essentially flat, and by flexible material built-up so that they can blood drawing or blood transfusion
The contoured surface of patient body is met in region.Safety needle assembly 20 is fixed to by the adhesive tape (not shown) being placed in above the wing 118
On patient body.The downside of each wing 118 may include texture (not shown), to improve the ability that the wing 118 firmly grasps skin.At each
Optional opening 120 be may include on the wing 118, to be conducive to the wing 118 to be fixed to one another.
With reference to Figure 1A, wing assembly body 114 includes the passage 122 along its inner surface.Passage 122 covers on housing 22
Block 50 above, and produce space, when safety guard 30 is moved distally through block 50 along pin 28, block 50 can be inclined
Go in this space, as described above.
As described above, the embodiment of safety needle assembly 20 is configured for drawing blood and/or transfusing blood or input
Other liquid.The process that pin 28 is inserted in patient's vascular system is commonly known as cannulation.In the cannulation phase
Between, operator is in enabling of Fig. 1 in safety needle assembly 20 and starts in the case of front construction.Before being also shown in fig. 8 enabling
Construction.With reference to Fig. 8, operator's positioning component 20 so that pin 28 sharp distal tip 34 close to patient skin 124.Institute
Enabling in front construction of display, exposes the pin 28 of desired length near tip 34.In various embodiments, length of exposure L can
For any length, all as between about 1mm and about 10mm.In one example, length of exposure L may be about 4mm.Behaviour
Author's positioning component 20 is so that it forms expectation angle Θ with respect to the skin 124 of patient.Θ can be any value, all as between big
Between about 5 ° and about 30 °.In one example, Θ may be about 18 °.
In that case of assembly 20 is positioned in Fig. 8, the sharp distal tip 34 of pin 28 closely or againsts
The skin 124 of patient, and the distal end portion 36 of safety guard 30 is similarly closely or against the skin 124 of patient.Here
In construction, safety guard 30 and socket 24 limit first and rotate against orientation, are described above and show first in Fig. 4 and 7
Rotate against orientation.First rotate against in orientation at this, the lock pin 100 on safety guard 30 is seated in the recess on socket 24
In 66, as shown in Figure 9.
Operator applies the power towards distally orientation to the assembly 20 of such as housing 22 and/or wing assembly 112, to be pierced with pin 28
Wear the skin 124 of patient.The step for during, operator preferably without impinging on safety guard 30, so as not to limit it along pin 28
The ability of translation.Assembly 20 forces the distal end portion 36 of safety guard 30 to abut against the skin of patient towards skin 124 athletic meeting of patient
124, this stable power F (Fig. 9) proximally orienting increasing to safety guard 30 application, thus force safety guard 30 along pin 28 court
Distal translation.When leaning against in the lock pin 100 on safety guard 30 in the oblique proximal face 104 of the recess 66 on socket 24, safety guard
30 make socket 24 produce rotary motion along the translational motion of pin 28, as explained above with described in Fig. 7, and as Fig. 9
As middle display.Thus, safety needle assembly 20 moves towards the second construction, and in the second configuration, safety guard 30 and socket 24 limit
Fixed second rotates against orientation.This illustrating in figures 10 and 11 second rotates against in orientation, the lock pin on safety guard 30
100 are positioned in the passage 60 on socket 24.Thus safety guard 30 is along pin 28 free shift, lock pin 100 is sliding along passage 60
Dynamic, till safety guard 30 reaches proximal limit.Proximal limit can be defined to such construction：Wherein biasing member 32 to the greatest extent may be used
Can be compressed.In this construction also illustrating in figures 10 and 11, biasing member 32 storage leans against the proximal side of safety guard 30
The returning spring force towards distally orientation on 110.In an alternative embodiment, the proximal limit of safety guard 30 can be defined to such
Construction：Wherein safety guard 30 runs into barriers, the distal face 126 of such as needle cannula 26, or another barriers (not shown).
Figure 10 and 11 illustrates to be in the safety guard 30 of its proximal limit.At this position, expose the pin 28 of desired length.
In various embodiments, and with reference to Figure 10, length of exposure L' can be any length, all as between about 10mm with about 30mm
Between.In one example, length of exposure L' may be about 19.5mm.
When blood transfusion or blood drawing program complete, operator recalls pin 28 from the vascular system of patient.When pin 28 is recalled,
Safety guard 30 is moved distally along pin 28 under the influence of biasing member 32, and this can move towards distally along pin 28 in safety guard 30
The returning spring force being stored therein is discharged when dynamic.Because safety guard 30 and socket 24 adopt second during this process stage
Rotate against orientation, when lock pin 100 reaches the position of recess 66, the lock pin 100 on safety guard 30 does not contact on socket 24
Recess 66.In fact, the lock pin 100 being positioned in socket passage 60 safety guard 30 continue on pin 28 towards distally towards Fig. 2 and
After 12 enable, construction bypasses recess 66 when continuing to, and wherein, the sharp distal tip 34 of pin 28 is capped, to reduce pin
The probability of thorn.
With reference to Figure 12, safety guard 30 continues on pin 28, and towards distally, the construction towards after enable moves, and lock pin 100 eventually arrives at shell
Block 50 on body 22.Lock pin 100 below block 50 through out-of-date, lock pin 100 contacts oblique at the distal end portion 56 of block 50
Inner surface 58, so that block 50 radially deflects.As described above, in the inner surface of wing assembly body 114
Passage 122 (Figure 1A) space is provided, block 50 deflects in space.When lock pin 100 from block 50 towards distally through out-of-date, storage
Returning spring force in block 50 (leaf spring) makes block 50 move back to its resting position, as shown in Figure 12.By
It is projected in the return path of lock pin 100 in block 50, block 50 provides barriers, it stops safety guard 30 along pin 28 towards near
Side shifting will be enough to the distance of the sharp tip 34 of exposed needle 28 again.Thus the sharp distal tip 34 of pin 28 is safely pacified
The covering of full cover 30, thus reduce the probability of acupuncture.
As discussed above, can independently and body and/or the animal bodies of people and execute current certain methods, all
As in order to test or demonstrate.In such embodiments, operator is in the feelings enabling front construction of Fig. 1 in safety needle assembly 20
Start under condition.Then operator can be by catching housing 22 with a finger on hand, and another finger on hand catches safety
Cover 30, and proximally push away safety guard 30 with respect to pin 28 and housing 22, proximally to translate safety guard 30 along pin 28.Safety
30 along pin 28, proximally translation can make socket 24 rotate to cover, and makes recessed on lock pin 100 on safety guard 30 and socket 24
Mouth 66 disengagement.When operator's release safety guard 30, the returning spring force in biasing member 32 makes safety guard 30 along pin 28 court
Distal translation, construction after safety guard 30 reaches the enabling of Fig. 2.
The various component parts of safety needle assembly 20 can be built-up by suitable medical grade material, and it is right that this material has
Each component provides the material properties of desired characteristic, and characteristic can be different because of the difference of component.For example, such as housing 22, socket
24th, some components of needle cannula 26, safety guard 30 and/or wing assembly 112 can be built-up by medical grade plastic material, including
(unrestricted) nylon, polyethylene, polypropylene, polyurethane, ethylene-vinyl acetate (EVA), polyether block amide (PEBAX),
Acrylonitrile butadiene styrene copolymer (ABS), polyether-ether-ketone (PEEK), politef (PTFE), thermoplastic polyether acyl are sub-
Amine (ULTEM) etc..Some other components of such as pin 28 and/or biasing member 32 can be built-up by medical grade metal material,
Including (unrestricted) rustless steel, titanium, cobalt-chromium etc..Aforementioned exemplary should not be construed as limiting.For example, the component being shown to be plastics exists
Can be built-up by the other materials of such as metal under certain situation, and be shown to be the component of metal in some cases can be by
The other materials of such as plastics are built-up.
Manufacture or manufacture method and using safety needle assembly and their component method in the scope of the present disclosure.
Above description describes various embodiments of the present invention in the way of complete, clear, succinct and definite, and makes
With using their mode so that can making about any technical staff in field and using the present invention.But, according to
Upper discussion, the present invention can have fully equivalent modification and alternative construction.Therefore, the invention is not restricted to disclosed specific embodiment.
On the contrary, the present invention covers all modifications within the spirit and scope of the present invention and alternative construction, the spirit and scope of the present invention
Substantially shown by claims, claim particularly points out and is distinctly claimed subject of the present invention.
Claims (according to the 19th article of modification of treaty)
1. a kind of safety needle assembly (20), including：
Housing (22), it includes proximal end (38) and distal end portion (40), and described housing limits inner space (42)；
Socket (24), is rotatably received in the inner space of described housing (42)；
Needle cannula (26), it receives in the proximal end (38) of described housing (22)；
Pin (28), it by described socket (24), and passes through described housing (22) from described needle cannula (26) towards distal extension
Distal end portion (40), described pin includes sharp distal tip (34)；
Safety guard (30), it limits inner chamber (94), and receives in the inner space (42) of described housing (22), described safety
Cover passes through the distal end portion (40) of described housing (40) from described housing (22) towards distal extension, and described pin (28) extends through described
The inner chamber (94) of safety guard (30), in enabling front construction, described sharp distal tip (34) exposes from described safety guard；And
Biasing member (32), it receives in described socket (24), and in described needle cannula (26) and described safety guard (30)
Between extend；
Wherein, described safety needle assembly (20) includes the first construction, in the described first construction, described safety guard (30) and described
Socket (24) limits first and rotates against orientation；And
Wherein, described safety needle assembly (20) includes the second construction, in the described second construction, described safety guard (30) and described
Socket (24) limits second and rotates against orientation,
It is characterized in that
Described safety guard (30) includes lock pin (100), and when safety needle assembly adopts the first construction, described lock pin (100) engages
Recess (66) on described socket (24), and
Described recess (66) includes the skewed surface (104) of the nearside in described lock pin (100).
2. safety needle assembly according to claim 1 adopts described first structure it is characterised in that working as described safety needle assembly
When making, described safety guard (30) engages described socket (42), to stop described safety guard with respect to described pin towards distal translation.
3. safety needle assembly according to claim 1 and 2 is it is characterised in that work as described safety guard with respect to described socket
(24), when proximally moving, described lock pin (100) leans against on described skewed surface (104) so that described socket (24) with respect to
Described safety guard (30) rotates against directional-rotation towards second.
4. safety needle assembly according to claim 3 is it is characterised in that described lock pin (100) is from described safety guard (30)
Extend radially outward.
5. safety needle assembly according to claim 1 and 2 is it is characterised in that described socket (24) includes vertical passage
(60), and when described safety guard (30) and described socket (24) rotate against orientation using described second, described lock pin
(100) can slide in described passage.
6. safety needle assembly according to claim 5 is it is characterised in that described passage (60) passes through described socket (24)
Side wall, extends to its distal end portion (64) from its proximal end (62).
7. according to described safety needle assembly claim 1 or 2 it is characterised in that when described safety needle assembly adopts described the
During two constructions, described socket (24) does not limit described safety guard (30) with respect to described pin (28) towards distal translation.
8. the safety needle assembly according to any one of aforementioned claim is it is characterised in that work as described safety needle assembly
During using the first construction, and when described safety needle assembly adopts the second construction, described biasing member (32) is along distal direction
Bias described safety guard (30).
9. safety needle assembly according to claim 8 is it is characterised in that in described biasing member (32) in described safety guard
(30) when the upper power towards distally orientation applying overcomes the power of proximally orienting of applying on described safety guard, described safety guard
(30) it is moved distally with respect to described pin (28), to cover the sharp distal tip (34) of described pin (28).
10. safety needle assembly according to claim 9 covers described pin it is characterised in that working as described safety guard (30)
(28), during sharp distal tip (34), described housing (22) stops described safety guard (30) with respect to described pin (28) proximally
The distance of the mobile sharp distal tip (34) enough to expose described pin (28).
11. safety needle assemblies according to claim 10 are it is characterised in that described housing (22) includes block (50), institute
State block (50) and be configured to the deflection when described safety guard moves along proximal-distal direction with respect to described housing (22), to permit
Permitted described safety guard (30) to pass through, and be configured to stop described safety guard (30) with respect to described housing (22) along distally-near
Side is to movement.
12. safety needle assemblies according to claim 11 are it is characterised in that described block (50) includes leaf spring.
13. safety needle assemblies according to any one of aforementioned claim are it is characterised in that described safety guard (30) connects
Close described housing (22), to stop described safety guard from rotating with respect to described housing (22).
14. safety needle assemblies according to claim 13 are it is characterised in that described safety guard (30) includes at least one rail
(96), described rail (96) extends longitudinally along the outer surface of described safety guard (30), and is slidably received in described shell
In at least one of body (22) breach.
15. safety needle assemblies according to claim 1 are it is characterised in that described safety needle assembly further includes wing group
Part (112), described wing assembly (112) includes the wing, and it is laterally extending from described safety needle assembly, and is configured with beneficial to general
Described safety needle assembly is fixed to patient.
16. safety needle assemblies according to claim 1 are it is characterised in that described biasing member (32) is spring.
A kind of 17. methods manufacturing safety needle assembly, including：
Form housing (22), described housing (22) supporting socket (24) and needle cannula (26), described socket (24) rotatably connects
It is received in described housing (22)；
Pin (28),, from described needle cannula (26) towards distal extension, described pin includes sharp distal tip (34) for it；
Safety guard (30) is positioned at so that in the first construction and enabling in front construction above described pin, described sharp distal end
The tip (34) exposes from the distal end portion of described safety guard (30)；
Wherein, described safety guard (30) engages described socket (24), to stop described safety guard along described pin towards distal translation；
Wherein, described safety guard (30) can be along described pin (28) towards distal translation, to cover the sharp distal of described pin (28)
Tip (34),
It is characterized in that
When described safety guard (30) proximally translates along described pin (28), described socket (24) can be with respect to described safety guard
(30) rotate, so that described safety guard (30) is disengaged with described socket (24), to allow described safety guard (30) along described pin
(28) towards distal translation, and
Described safety guard (30) includes lock pin (100), when described safety needle assembly adopts described first construction, described lock pin
(100) engage the block (66) on described socket (24), and
Described block (66) includes the skewed surface (104) of the nearside in described lock pin (100).
18. methods according to claim 17 it is characterised in that methods described further includes biasing member (32), with
The power that described safety guard (30) application is oriented towards distally.
19. methods according to claim 18 are it is characterised in that described biasing member (32) receives in described socket (24)
Interior, and extend between described needle cannula (26) and described safety guard (30).
20. methods according to claim 17 or 18 are it is characterised in that described biasing member (32) is spring.
21. methods according to any one of claim 17 to 20 it is characterised in that when described safety guard (30) along
When described pin proximally translates, described lock pin (100) leans against on described skewed surface (104), so that described socket (24) is relatively
In described safety guard (30) rotation.
Claims (24)
1. a kind of safety needle assembly, including：
Housing, it includes proximal end and distal end portion, and described housing limits inner space；
It is rotatably received in the socket in the inner space of described housing；
Receive the needle cannula in the proximal end of described housing；
Pin, its from described needle cannula towards distal extension, by described socket, and by the distal end portion of described housing, described pin
Including sharp distal tip；
Safety guard, it limits inner chamber and receives in the inner space of described housing, and described safety guard is from described housing towards distally
Extend through the distal end portion of described housing, described pin extends through the inner chamber of described safety guard, and described sharp distal tip is from institute
State safety guard to expose；And
Biasing member, it receives in described socket, and extends between described needle cannula and described safety guard；
Wherein, described safety needle assembly includes the first construction, and in the described first construction, described safety guard and described socket limit
First rotates against orientation；And
Wherein, described safety needle assembly includes the second construction, and in the described second construction, described safety guard and described socket limit
Second rotates against orientation.
2. safety needle assembly according to claim 1 adopts described first structure it is characterised in that working as described safety needle assembly
When making, described safety guard engages described socket, to stop described safety guard with respect to described pin towards distal translation.
3. safety needle assembly according to claim 1 and 2 is it is characterised in that described safety guard includes lock pin, when described peace
When full needle assembly adopts described first construction, described lock pin engages the recess on described socket.
4. safety needle assembly according to claim 3 is it is characterised in that described recess includes the nearside in described lock pin
Skewed surface.
5. safety needle assembly according to claim 4 is it is characterised in that when described safety guard with respect to described socket towards near
During side shifting, described lock pin is resisted against on described skewed surface so that described socket with respect to described safety guard towards described
Two rotate relative to spin orientation.
6. the safety needle assembly according to any one of claim 3 to 5 is it is characterised in that described lock pin is from described peace
Full cover extends radially outward.
7. safety needle assembly according to claim 3 is it is characterised in that described socket includes vertical passage, and works as institute
When stating safety guard and described socket and rotating against orientation using described second, described lock pin can slide in described passage.
8. safety needle assembly according to claim 1 and 2 is it is characterised in that when described safety needle assembly adopts described the
During two constructions, described socket does not limit described safety guard with respect to described pin towards distal translation.
9. the safety needle assembly according to any one of aforementioned claim is it is characterised in that work as described safety needle assembly
During using the described first construction, and when described safety needle assembly adopts described second construction, described biasing member is along distally
Direction biases described safety guard.
10. safety needle assembly according to claim 9 is it is characterised in that in described biasing member on described safety guard
Apply towards distally orientation power overcome be applied on described safety guard proximally orient power when, described safety guard with respect to
Described pin is moved distally, to cover the sharp distal tip of described pin.
11. safety needle assemblies according to claim 10 cover the sharp of described pin it is characterised in that working as described safety guard
During distal tip, described housing stops described safety guard from proximally moving enough to expose the sharply remote of described pin with respect to described pin
The distance of side tip.
12. safety needle assemblies according to claim 11 it is characterised in that described housing includes block, described block structure
Cause the deflection when described safety guard moves along proximal-distal direction with respect to described housing, to allow described safety guard to pass through,
And it is configured to stop described safety guard from moving along distal-proximal direction with respect to described housing.
13. safety needle assemblies according to claim 12 are it is characterised in that described block includes leaf spring.
14. safety needle assemblies according to any one of aforementioned claim are it is characterised in that described safety guard engages institute
State housing, to stop described safety guard from rotating with respect to described housing.
15. safety needle assemblies according to claim 14 are it is characterised in that described safety guard includes at least one rail, institute
The outer surface stating rail along described safety guard extends longitudinally, and it is scarce to be slidably received at least one of described housing
In mouthful.
16. safety needle assemblies according to claim 1 are it is characterised in that described safety needle assembly further includes wing group
Part, described wing assembly includes the wing, and the described wing is laterally extending from described safety needle assembly, and is configured with being beneficial to described peace
Full needle assembly is fixed to patient.
17. safety needle assemblies according to claim 1 are it is characterised in that described biasing member is spring.
A kind of 18. methods manufacturing safety needle assembly, including：
Form housing, described housing supporting socket and needle cannula, described socket is rotatably received in described housing；
Make pin from described needle cannula towards distal extension, described pin includes sharp distal tip；
Safety guard is positioned above described pin so that in the first construction, described sharp distal tip is from described safety guard
Distal end portion exposes；
Wherein, described safety guard engages described socket, to stop described safety guard along described pin towards distal translation；
Wherein, when described safety guard proximally translates along described pin, described socket can rotate with respect to described safety guard, with
Described safety guard is made to disengage with described socket, to allow described safety guard along described pin towards distal translation；And
Wherein, described safety guard can be along described pin towards distal translation, to cover the sharp distal tip of described pin.
19. methods according to claim 18 it is characterised in that methods described further includes biasing member, with to institute
State safety guard application towards the power of distally orientation.
20. methods according to claim 19 it is characterised in that described biasing member receive in described socket, and
Extend between described needle cannula and described safety guard.
21. methods according to claim 18 or 19 are it is characterised in that described biasing member is spring.
22. methods according to any one of claim 18 to 21 it is characterised in that described safety guard includes lock pin,
When described safety needle assembly adopts described first construction, described lock pin engages the block on described socket.
23. methods according to claim 22 are it is characterised in that described block includes the oblique table of the nearside in described lock pin
Face.
24. methods according to claim 23 are it is characterised in that when described safety guard proximally translates along described pin
When, described lock pin leans against on described skewed surface, so that described socket rotates with respect to described safety guard.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201461937307P | 2014-02-07 | 2014-02-07 | |
| US61/937307 | 2014-02-07 | ||
| PCT/EP2015/052521 WO2015118109A1 (en) | 2014-02-07 | 2015-02-06 | Safety needle assemblies and related methods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106470721A true CN106470721A (en) | 2017-03-01 |
Family
ID=52450130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580017760.6A Pending CN106470721A (en) | 2014-02-07 | 2015-02-06 | Safety needle assembly and method |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10279108B2 (en) |
| EP (1) | EP3102265B1 (en) |
| CN (1) | CN106470721A (en) |
| BR (1) | BR112016018189A2 (en) |
| ES (1) | ES2714561T3 (en) |
| RU (1) | RU2672689C2 (en) |
| WO (1) | WO2015118109A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10639454B2 (en) * | 2016-03-28 | 2020-05-05 | Becton, Dickinson And Company | Ergonomic IV systems and methods |
| US11826527B2 (en) | 2017-07-25 | 2023-11-28 | Kurin, Inc. | Needle assembly with needle safety shield |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5049136A (en) * | 1990-01-10 | 1991-09-17 | Johnson Gerald W | Hypodermic needle with protective sheath |
| WO1993001851A1 (en) * | 1991-07-18 | 1993-02-04 | Sterimatic Holdings Limited | Skin puncturing instruments, especially clinical needles |
| EP1321158A1 (en) * | 2001-12-21 | 2003-06-25 | A. Asbaghi Hooman | Safety device for a capped, prefilled injection syringe |
| CN1638833A (en) * | 2002-03-07 | 2005-07-13 | 塞尔焦·雷斯特利 | Safety butterfly needle for venipuncture with needle cover device |
| US20060271001A1 (en) * | 2005-05-25 | 2006-11-30 | Nipro Corporation | Medical needle |
| EP1985324A1 (en) * | 2007-04-24 | 2008-10-29 | Nipro Corporation | Indwelling needle with protective sleeve |
| CN101563125A (en) * | 2006-09-06 | 2009-10-21 | 特克法马许可公司 | Needle protection device with a blocked protection position |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2438721C2 (en) * | 2006-06-30 | 2012-01-10 | Эбботт Байотекнолоджи Лтд. | Automatic injection device |
-
2015
- 2015-02-06 WO PCT/EP2015/052521 patent/WO2015118109A1/en active Application Filing
- 2015-02-06 EP EP15702807.7A patent/EP3102265B1/en not_active Not-in-force
- 2015-02-06 CN CN201580017760.6A patent/CN106470721A/en active Pending
- 2015-02-06 US US15/115,884 patent/US10279108B2/en active Active
- 2015-02-06 RU RU2016135932A patent/RU2672689C2/en not_active IP Right Cessation
- 2015-02-06 ES ES15702807T patent/ES2714561T3/en active Active
- 2015-02-06 BR BR112016018189-1A patent/BR112016018189A2/en not_active IP Right Cessation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5049136A (en) * | 1990-01-10 | 1991-09-17 | Johnson Gerald W | Hypodermic needle with protective sheath |
| WO1993001851A1 (en) * | 1991-07-18 | 1993-02-04 | Sterimatic Holdings Limited | Skin puncturing instruments, especially clinical needles |
| EP1321158A1 (en) * | 2001-12-21 | 2003-06-25 | A. Asbaghi Hooman | Safety device for a capped, prefilled injection syringe |
| CN1638833A (en) * | 2002-03-07 | 2005-07-13 | 塞尔焦·雷斯特利 | Safety butterfly needle for venipuncture with needle cover device |
| US20060271001A1 (en) * | 2005-05-25 | 2006-11-30 | Nipro Corporation | Medical needle |
| CN101563125A (en) * | 2006-09-06 | 2009-10-21 | 特克法马许可公司 | Needle protection device with a blocked protection position |
| EP1985324A1 (en) * | 2007-04-24 | 2008-10-29 | Nipro Corporation | Indwelling needle with protective sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2016135932A (en) | 2018-03-15 |
| US10279108B2 (en) | 2019-05-07 |
| ES2714561T3 (en) | 2019-05-29 |
| US20170165417A1 (en) | 2017-06-15 |
| RU2016135932A3 (en) | 2018-03-30 |
| EP3102265A1 (en) | 2016-12-14 |
| WO2015118109A1 (en) | 2015-08-13 |
| EP3102265B1 (en) | 2018-12-26 |
| RU2672689C2 (en) | 2018-11-19 |
| BR112016018189A2 (en) | 2020-10-27 |
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